CN107807290A - Direct-current charging post detecting system and detection method - Google Patents
Direct-current charging post detecting system and detection method Download PDFInfo
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- CN107807290A CN107807290A CN201711035902.9A CN201711035902A CN107807290A CN 107807290 A CN107807290 A CN 107807290A CN 201711035902 A CN201711035902 A CN 201711035902A CN 107807290 A CN107807290 A CN 107807290A
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- G—PHYSICS
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- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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Abstract
The present invention relates to a kind of direct-current charging post detecting system, it includes DC simulation device, analog charge procedural test load, charging pile load capacity test load, analog power, oscillograph, signal gating device, and the DC simulation device includes analog-digital converter, digital circuit processing module and the detecting system interface with tested direct-current charging post Interface Matching.The present invention can test and analyze to input and output current and voltage signals, can also be to the detection of charging pile the machine charge control compatibility and charging communication compatibility detection.Wherein controlling compatibility test to include pile body control guiding parameter testing, normal charging process test and imitated storage battery fault test, communication compatibility test includes direct-current charging post handshake phase, configuration phase, charging stage, the communication test of ending phase this four-stage.The present invention can complete detection direct-current charging post performance indications, ensure direct-current charging post reliability service.
Description
Technical field
The present invention relates to electric detection technique field, and in particular to a kind of direct-current charging post detecting system and detection method.
Background technology
Charging infrastructure construction is to influence one of key factor that China's new-energy automobile is promoted, and country takes stake station
The leading construction strategy of appropriateness.National Development and Reform Committee《Charging electric vehicle infrastructure development guide (2015~the year two thousand twenty)》It is aobvious
Show, the target of China's charging infrastructure development is " to arrive the year two thousand twenty, build up and concentrate electric charging station 1.2 ten thousand, disperse charging pile
4800000 ".To ensure direct-current charging post reliability service, detected before and after need to being put into operation to filling direct current stake.Existing detection system
System or device can only detect to direct-current charging post partial electric performance or compatibility, lack simulated failure detection.For to charging pile
Comprehensive test of performance, ensure charging pile safe operation, it would be highly desirable to research and develop a kind of direct-current charging post detecting system and meet this demand.
The content of the invention
It is an object of the invention to for problems of the prior art, propose a kind of direct-current charging post detecting system and
Detection method, the present invention are used for put into operation to direct-current charging post front and rear output electric property and compatibility test, solved existing
Detecting system or device Testing index are less, it is impossible to comprehensively reflect charging pile charging performance, it is impossible to ensure that charging pile is transported safely
The problems such as row, effectively raise the reliability of charging pile.
A kind of in order to solve the above technical problems, direct-current charging post detecting system disclosed by the invention, it is characterised in that:It is wrapped
DC simulation device, analog charge procedural test load, charging pile load capacity test load, analog power, oscillograph are included, it is described
DC simulation device includes analog-digital converter, digital circuit processing module and the detecting system with tested direct-current charging post Interface Matching
Interface, the direct current output positive terminal DC+ and direct current output negative pole end DC- of the detecting system interface respectively by switch Gk1 and
Gk2 connections analog power positive pole feeder ear and negative pole feeder ear are switched, the earth terminal E-GND connections modulus of detecting system interface turns
The earth terminal of parallel operation, the accessory power supply positive terminal A+ and accessory power supply negative pole end A- of detecting system interface connect charging pile band respectively
The anode interface and negative pole interface of loading capability test load, detecting system interface first connection confirmation signal communication ends CC1 and
The first connection that second connection confirmation signal communication ends CC2 connects analog-digital converter respectively confirms detection analog signal interface and the
Two connections confirm detection analog signal interface, and the CAN positive pole COM1 S+ and CAN negative pole of detecting system interface lead to
Letter port S- connects the CAN positive poles communication ends and CAN negative pole communication ends of digital circuit processing module respectively;
Two first voltage sample connections of analog-digital converter are respectively connected to the direct current output positive terminal of detecting system interface
DC+ and direct current output negative pole end DC-, two second voltage sample connections of analog-digital converter are respectively connected to detecting system interface
Accessory power supply positive terminal A+ and accessory power supply negative pole end A-, the current sampling interface access testing system interface of analog-digital converter
Direct current output positive terminal DC+, the data signal of the digital signal output end connection digital circuit processing module of analog-digital converter are defeated
Enter end;
The positive terminal of analog charge procedural test load connects inspection with k6 by switching k5 respectively with negative terminals
The direct current output positive terminal DC+ and direct current output negative pole end DC- of examining system interface;
The oscillograph is used for positive terminal and negative terminals and detection system to intending charging process test load
Each interface of system interface carries out recorded broadcast;
A kind of charging pile detection method using above-mentioned direct-current charging post detecting system, it is characterised in that it includes as follows
Step:
Step 1:Exact p-value is connected, connection exact p-value checks whether direct-current charging post can be true by the connection of measurement first
The magnitude of voltage for recognizing signal communication end CC1 judges the connection status of vehicle plug and vehicle socket, and charged state corresponding to entrance;
If the voltage for detecting the first connection confirmation signal communication ends CC1 is the first predeterminated voltage, detecting system is judged
It is fully connected with charging pile interface, the accessory power supply of direct-current charging post interface is to detecting system interface output voltage, DC simulation
Device is started working, then this time test result is normal;
Step 2:Autonomous test is tested, and direct-current charging post checks that A+A- has voltage output, by CAN to DC simulation device
Digital signal processing module sends handshake message, and the handshake message that host computer is sent to charging pile is monitored parsing, is simultaneously emitted by holding
Hand message, simulation electric automobile BMS set charging ceiling voltage, and then direct-current charging post carries out Insulation monitoring and insulation is released;
Step 3:Charge the preparatory stage, host computer controls analog power by the digital circuit processing module of DC simulation device
Simulation electric automobile charges normal the output of battery both end voltage, is closed at switching GK1 and GK2, the numeral of DC simulation device
Processing of circuit module sends BRO=0xAA messages to direct-current charging post by CAN and reports and submits battery to be ready to, host computer prison
Measuring direct-current charging post transmission message reports and submits direct-current charging post to get out information, and this time test result is normal;
Step 4:Charging stage is tested, and host computer is sent out by the CAN of digital circuit processing module to direct-current charging post
Text of delivering newspaper reports and submits battery tension demand, current needs, host computer by controlling DC simulation device to measure output voltage,
And send message to direct-current charging post and report and submit battery charging voltage value information and current measurement value information;If host computer monitors
Direct-current charging post sends message to DC simulation device and reports and submits voltage output value, current output value, accumulative charging interval, and charging allows
State, then this time test result is normal;
Step 5:The ending phase that charges test, host computer set simulation by the digital circuit processing module of DC simulation device
The magnitude of voltage of power supply, charging electric vehicle completion status is simulated, and send message to direct-current charging post and report and submit termination to charge, direct current
Charging pile stops charging and sending termination charging message, then this time test result is normal.
Beneficial effects of the present invention are:
The present invention can test and analyze to input and output current and voltage signals, charging pile the machine can also be charged and controlled
The detection of system compatibility and charging communication compatibility detection.Wherein control compatibility test include pile body control guiding parameter testing,
Normal charging process is tested and imitated storage battery fault test, and communication compatibility test includes direct-current charging post handshake phase, matched somebody with somebody
Put stage, charging stage, the communication test of ending phase this four-stage.The present invention can complete detection direct-current charging post performance refer to
Mark, ensure direct-current charging post reliability service.The present invention also has simple in construction in addition, easy and safe to operate, operating efficiency it is high and
The advantages that good reliability.
Brief description of the drawings
Fig. 1 is the structured flowchart of the present invention.
Wherein, 1-DC simulation device, 1.1-detecting system interface, 1.2-analog-digital converter, at 1.3-digital circuit
Manage module, 2-host computer, 3-analog charge procedural test load, 4-charging pile load capacity test load, 5-simulation electricity
Source, 6-oscillograph, 7-signal gating device, 8-tested direct-current charging post interface, 9-oscillograph, 10-CAN turn USB module,
11-power analyzer.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
A kind of direct-current charging post detecting system of the present invention, as shown in figure 1, it includes DC simulation device 1, analog charge mistake
Journey test load 3 (high-power resistance loads, simulation charging electric vehicle process), (12V of charging pile load capacity test load 4
Electronic load), analog power 5 (BMS analog powers), oscillograph 6, the DC simulation device 1 include analog-digital converter 1.2, number
Word processing of circuit module 1.3 and the detecting system interface 1.1 matched with tested direct-current charging post interface 8, the detecting system connect
The direct current output positive terminal DC+ and direct current output negative pole end DC- of mouth 1.1 connect simulation electricity by switching Gk1 with switch Gk2 respectively
The positive pole feeder ear of source 5 and negative pole feeder ear, the ground connection of the earth terminal E-GND connections analog-digital converter 1.2 of detecting system interface 1.1
End, the accessory power supply positive terminal A+ and accessory power supply negative pole end A- of detecting system interface 1.1 connect charging pile load capacity respectively
The anode interface and negative pole interface of test load 4, the first connection confirmation signal communication ends CC1 of detecting system interface 1.1 and the
Two connection confirmation signal communication ends CC2 connect respectively analog-digital converter 1.2 first connection confirm detection analog signal interface and
Second connection confirms detection analog signal interface, the CAN positive pole COM1 S+ and CAN of detecting system interface 1.1
Negative pole COM1 S- connects the CAN positive poles communication ends and CAN negative pole communication ends of digital circuit processing module 1.3 respectively;
Two first voltage sample connections of analog-digital converter 1.2 are respectively connected to the direct current output of detecting system interface 1.1
Positive terminal DC+ and direct current output negative pole end DC-, two second voltage sample connections of analog-digital converter 1.2 are respectively connected to detect
The accessory power supply positive terminal A+ and accessory power supply negative pole end A- of system interface 1.1, the current sampling interface of analog-digital converter 1.2 connect
Enter the direct current output positive terminal DC+ of detecting system interface 1.1, the digital signal output end connection numeral electricity of analog-digital converter 1.2
The digital signal input end of road processing module 1.3;
The positive terminal of analog charge procedural test load 3 connects inspection with k6 by switching k5 respectively with negative terminals
The direct current output positive terminal DC+ and direct current output negative pole end DC- of examining system interface 1.1;
The oscillograph 6 is used for positive terminal and negative terminals and detection to intending charging process test load 3
Each interface of system interface 1.1 carries out recorded broadcast;
Detecting system interface 1.1 and tested direct-current charging post interface 8 include direct current output positive terminal DC+, direct current output
Negative pole end DC-, earth terminal E-GND, accessory power supply positive terminal A+, accessory power supply negative pole end A-, the first connection confirmation signal communication
Hold CC1, the second connection confirmation signal communication ends CC2, CAN positive pole COM1 S+, CAN negative pole COM1 S-.
In above-mentioned technical proposal, the direct current output of the current signal interface access testing system interface 1.1 of the oscillograph 6
Positive terminal DC+, the direct current output positive terminal DC+ of the first voltage signaling interface access testing system interface 1.1 of oscillograph 6 with it is straight
Flow output negative pole end DC-, the CAN positive pole communication of the CAN communication interface access testing system interface 1.1 of oscillograph 6
Port S+ and CAN negative pole COM1 S-, the auxiliary of the auxiliary power interface access testing system interface 1.1 of oscillograph 6
Power positive end A+ and accessory power supply negative pole end A-, the connection of oscillograph 6 confirm the first of interface access testing system interface 1.1
The connection confirmation signal communication ends CC2 of confirmation signal communication ends CC1 and second are connected, the second voltage signaling interface of oscillograph 6 connects
Enter the positive terminal and negative terminals of analog charge procedural test load 3.
In above-mentioned technical proposal, it is connected with out between the direct current output positive terminal DC+ and switch k5 of detecting system interface 1.1
K7 one end is closed, the another of switch K7 is connected between the direct current output negative pole end DC- and switch k6 of detecting system interface 1.1
End.
In above-mentioned technical proposal, the control signal output of digital circuit processing module 1.3 is connected by 485 buses respectively
The control signal input of analog charge procedural test load 3, charging pile load capacity test load 4 and analog power 5.
In above-mentioned technical proposal, it also includes signal gating device 7 and oscillograph 9, is controlled in the gating of signal gating device 7
Under, the recording interface that oscillograph 9 is chosen to oscillograph 6 carries out ripple analysis.
In above-mentioned technical proposal, it also includes host computer 2, and the USB communication interface of the host computer 2 turns USB moulds by CAN
The CAN positive pole COM1 S+ and CAN negative pole COM1 S- of the access testing system interface 1.1 of block 10, host computer 2
Ethernet interface access digital circuit processing module 1.3 host computer communication interface.
In above-mentioned technical proposal, it also includes switch K1, switch K1 ', switch G1~switch G4, resistance R1~resistance R7,
Wherein, the first connection confirmation signal communication ends CC1 of K1 one end connecting detection system interface 1.1 is switched, switchs the another of K1
End passes through the earth terminal E-GND of resistance R1 (1k Ω) connecting detection system interface 1.1, switch K1 ' one end connecting detection system
First connection confirmation signal communication ends CC1 of interface 1.1, by resistance R2, (resistance R2 is swept resistance to the switch K1 ' other end
Standard resistance range is 0.57~2K Ω) the earth terminal E-GND of connecting detection system interface 1.1, switch G1 one end connecting detection system
The earth terminal E-GND of system interface 1.1, the other end for switching G1 pass through the straight of resistance R3 (20k Ω) connecting detection system interface 1.1
Output cathode end DC+ is flowed, switchs the earth terminal E-GND of G2 one end connecting detection system interface 1.1, the other end for switching G2 leads to
The direct current output positive terminal DC+ of resistance R4 (100k Ω) connecting detection system interface 1.1 is crossed, switchs G3 one end connecting detection system
The earth terminal E-GND of system interface 1.1, the other end for switching G3 pass through the straight of resistance R5 (20k Ω) connecting detection system interface 1.1
Output negative pole end DC- is flowed, switchs the earth terminal E-GND of G4 one end connecting detection system interface 1.1, the other end for switching G4 leads to
The direct current output negative pole end DC- of resistance R6 (100k Ω) connecting detection system interface 1.1 is crossed, the second of analog-digital converter 1.2 connects
Connect confirmation detection analog signal interface and pass through resistance R7 (1K Ω) connection 12V voltage sources.
In above-mentioned technical proposal, it also includes power analyzer 11, the direct current output positive terminal DC of detecting system interface 1.1
+ and direct current output negative pole end DC- be connected with power analyzer 11, power analyzer 11 passes through to tested direct-current charging post interface 8
The output current voltage characteristic of detecting system interface 1.1 carries out sampling analysis, before tested direct-current charging post interface 8 puts into operation, inspection
Examining system interface 1.1 is used to be connected with inlet wire A, B, C, N of tested direct-current charging post interface 8, and input current voltage is adopted
Sample is analyzed.Power analyzer 11 carries out sampling analysis to direct-current charging post output current voltage characteristic, is put into operation in direct-current charging post
It is preceding that (the A phases in three-phase current, B phases, C phases, N are center line) can be also connected with direct-current charging post inlet wire A, B, C, N, to input current
Voltage carries out sampling analysis.
Above-mentioned all switches carry out switch control by host computer 2, and K7 is IGBT types switch in above-mentioned switch, and rest switch is equal
Switched for relay-type, host computer 2 controls DC simulation device on-off circuit, 485 communication bus, CAN communication, mould by Ethernet
Intend the various charging processes of electric automobile, analog circuitry processes part carries out sampling analysis to line signal in simulation process, then
By AD conversion, result is uploaded to host computer by digital circuit processing module.This direct-current charging post detecting system can be simulated electronic
Automobile charging process, realize to this machine testing of charging pile.
A kind of charging pile detection method using above-mentioned direct-current charging post detecting system, it comprises the following steps:
Step 1:Exact p-value is connected, connection exact p-value checks whether direct-current charging post can be true by the connection of measurement first
The magnitude of voltage for recognizing signal communication end CC1 judges the connection status of vehicle plug and vehicle socket, and charged state corresponding to entrance;
If the voltage for detecting the first connection confirmation signal communication ends CC1 is 4V, detecting system and charging staking are judged
Mouth is fully connected, and the accessory power supply of direct-current charging post interface exports 12V voltages to detecting system interface 1.1, and DC simulation device 1 is opened
Beginning work, then this time test result is normal;
Step 2:Autonomous test is tested, digital circuit processing module of the direct-current charging post by CAN to DC simulation device 1
1.3 send handshake message, and the handshake message that host computer 2 is sent to direct-current charging post is monitored parsing, is simultaneously emitted by report of shaking hands
Text, simulation electric automobile BMS set charging ceiling voltage, and then direct-current charging post carries out Insulation monitoring and insulation is released.
Step 3:Charge the preparatory stage, host computer 2 controls mould by the digital circuit processing module 1.3 of DC simulation device 1
Intend the simulation electric automobile of power supply 5 and charge normal the output of battery both end voltage, be closed at switching GK1 and GK2, DC simulation device
1 digital circuit processing module 1.3 sends message to direct-current charging post by CAN and reports and submits battery to be ready to, host computer 2
Monitor that direct-current charging post sends message and reports and submits direct-current charging post to get out information, this time test result is normal;
Step 4:Charging stage tests, and host computer 2 is by the CAN of digital circuit processing module 1.3 to DC charging
Stake sends message and reports and submits battery tension demand, current needs, and host computer is by controlling DC simulation device 1 to carry out output voltage
Measurement, and send message to direct-current charging post and report and submit battery charging voltage value information and current measurement value information;If host computer 2
Monitor that direct-current charging post sends message to DC simulation device 1 and reports and submits voltage output value, current output value, accumulative charging interval,
Charge permission state, then this time test result is normal;
Step 5:The ending phase that charges test, host computer 2 are set by the digital circuit processing module 1.3 of DC simulation device 1
The magnitude of voltage of analog power 5 is put, simulates charging electric vehicle completion status, and send message to direct-current charging post and report and submit in BMS
Only charge, direct-current charging post stopping, which is charged and sends message, reports and submits direct-current charging post to stop charging, then this time test result is normal.
The present invention can also carry out direct-current charging post control guide wire parameter testing, and test process is, detecting system interface with
Direct-current charging post interface connects, and DC charging detecting system starts to detect to direct-current charging post, starts direct-current charging post, and direct current fills
Electric stake starts detection connection and confirms CC1 point voltages, and host computer passes through controlling switch K1, K1 of DC simulation device 1 ', set connection true
Recognize end CC1 and ground connection E-GND resistance, when switching K1 closures, R1=1k Ω, detect that connection confirms that end CC1 voltages are 4V, then
Judge that detecting system is fully connected with charging pile interface, charging pile accessory power supply exports accessory power supply voltage to detecting system, together
When to the detecting system cycle send handshake message;When switch K1 is disconnected, and switch K1 ' is closed, R2=0.57k Ω are controlled, then are connected
Connect and confirm that end CC1 voltages are 3.2V, or control R2=4.8k Ω, then connection confirm that end CC1 voltages are 4.8V, then judge detection
System is not fully connected with charging system, and host computer display connection is unreliable.
The present invention can also carry out the test of direct-current charging post exception charging process, and process is that host computer 2 controls DC simulation device 1
Stopping 10s, cycle transmission BMV, BMT, BSP message, imitated storage battery communication failure, if direct-current charging post stops charging this time
Test result is normal.
The present invention can also carry out communication compatibility test of charging, and in charging process, communication compatibility test includes shaking hands
Stage, configuration phase, charging stage, ending phase.
1st, handshake phase test cases
After the completion of direct-current charging post and DC simulation device physical connection, DC simulation device test system starts, DC charging
The stake cycle sends handshake message, then direct-current charging post communication meets result requirement;Upper computer detection is sent to direct-current charging post
After handshake message, the DC simulation device 250ms cycles send handshake message, and direct-current charging post completes Insulation monitoring, and cycle transmission is distinguished
Know message, SPN2560=0x00, then direct-current charging post communication meets result requirement;Into cognitive phase of shaking hands, DC simulation device
Identification message, SPN2560=0x00 are received, DC simulation device stops sending message, and direct-current charging post sends identification report from first
SPN2560=0x00 is sent in text 5s, SPN3921=0x01 is sent more than 5s, then direct-current charging post communication meets result and wanted
Ask.
2nd, configuration phase test cases
DC simulation device receives identification message, and after SPN2560=0xAA, the DC simulation device 500ms cycles send battery
Parameter message, DC charging motor stop sending identification message, SPN2560=0xAA, and the cycle sends CML messages, then DC charging
Stake communication meets result requirement;DC simulation device receives direct-current charging post maximum output ability message, time synchronization information message,
But it is not ready to ready, the simulator 250ms cycles send SPN2829=0x00BRO messages, and direct-current charging post motor continues cycle hair
Maximum output ability message is sent, then direct-current charging post communication meets result requirement.
3rd, charging stage test cases
DC simulation device receives SPN2830=0xAA CRO messages, and the DC simulation device 250ms cycles send battery and filled
The total state message of electricity, 50ms cycles send battery charge requirement message, and direct-current charging post stops sending direct-current charging post output
Ready state, SPN2830=0xAA, 50ms cycles send direct-current charging post charged state message, then current charge stake communication meets
As a result require;DC simulation device receives direct-current charging post charged state message, and the simulator 10s cycles send battery tension, stored
Battery temperature, battery reserve message, and the direct-current charging post 50ms cycles send direct-current charging post charged state message, then direct current fills
Electric stake communication meets result requirement.
4th, ending phase test cases
DC simulation device receives direct-current charging post and stops message or send BMS to stop charging message, into ending phase,
If now the DC simulation device 250ms cycles send BMS statistics messages, the charger 250ms cycles send direct-current charging post system
Message is counted, then direct-current charging post communication meets result requirement;If DC simulation device does not send message, charger is sent out from first
Direct-current charging post is sent to stop charge and send out direct-current charging post termination by the 10ms cycles in 5s and charge, more than 5s transmissions SPN3927=
0x01, then direct-current charging post communication meet result requirement.
The present invention can also carry out low pressure accessory power supply test, and host computer is set by the bus communication of DC simulation device 485 to be filled
Electric stake load capacity test load 4, accessory power supply A+ and A- voltage signal is extracted by signal gating device and oscillograph, analysis is auxiliary
Help electric power output voltage ripple factor.
The present invention can also carry out charging output test
(1) output voltage error is tested:The work of direct-current charging post constant pressure is set, and band carries 50%In, it is desirable to which output voltage misses
Difference is not more than ± 0.5%
Test method:Load sets constant current mode, power analyzer measurement direct-current charging post output voltage electric current.
(2) output current error is tested:Direct-current charging post constant current operation is set, it is desirable to output voltage setting Umen, output
It is not more than ± 0.3A during current error < 30A, is not more than ± 1% during >=30A.
Test method:Load sets constant pressure mode of operation, power analyzer measurement direct-current charging post output voltage electric current.
(3) efficiency and power factor test:Under direct-current charging post constant pressure and flow mode of operation, power analyzer measurement is filled directly
Current charge stake input side power factor and active power, outlet side dc power.
The present invention can also carry out dielectric test, and experimentation is:After present invention access charging pile, host computer passes through straight
Flow field simulation device controlling switch circuit, closure switch G1 and switch G3, if charging pile stops charging, insulating properties test result is just
Often;Closure switch G2 and switch G4, if direct-current charging post does not stop charging, but has alarm, then insulating properties test result is being just
Often.
The content that this specification is not described in detail belongs to prior art known to professional and technical personnel in the field.
Claims (9)
- A kind of 1. direct-current charging post detecting system, it is characterised in that:It includes DC simulation device (1), analog charge procedural test (3), charging pile load capacity test load (4), analog power (5), oscillograph (6) are loaded, the DC simulation device (1) includes Analog-digital converter (1.2), digital circuit processing module (1.3) and the detecting system matched with tested direct-current charging post interface (8) Interface (1.1), the direct current output positive terminal DC+ and direct current output negative pole end DC- of the detecting system interface (1.1) pass through respectively Switch Gk1 connects analog power (5) positive pole feeder ear and negative pole feeder ear, the ground connection of detecting system interface (1.1) with switch Gk2 Hold the earth terminal of E-GND connection analog-digital converters (1.2), the accessory power supply positive terminal A+ and auxiliary of detecting system interface (1.1) Power cathode end A- connects the anode interface of charging pile load capacity test load (4) respectively and negative pole interface, detecting system connect First connection confirmation signal communication ends CC1 of mouth (1.1) and the second connection confirmation signal communication ends CC2 connect analog-to-digital conversion respectively First connection of device (1.2) confirms that detection analog signal interface and the second connection confirm detection analog signal interface, detecting system The CAN positive pole COM1 S+ and CAN negative pole COM1 S- of interface (1.1) connect digital circuit processing mould respectively The CAN positive poles communication ends and CAN negative pole communication ends of block (1.3);Two first voltage sample connections of analog-digital converter (1.2) are respectively connected to the direct current output of detecting system interface (1.1) Positive terminal DC+ and direct current output negative pole end DC-, two second voltage sample connections of analog-digital converter (1.2) are respectively connected to examine The accessory power supply positive terminal A+ and accessory power supply negative pole end A- of examining system interface (1.1), the current sampling of analog-digital converter (1.2) The direct current output positive terminal DC+ of interface access testing system interface (1.1), the digital signal output end of analog-digital converter (1.2) Connect the digital signal input end of digital circuit processing module (1.3);The positive terminal and negative terminals of analog charge procedural test load (3) are respectively by switching k5 and k6 connecting detections The direct current output positive terminal DC+ and direct current output negative pole end DC- of system interface (1.1);The oscillograph (6) is used for positive terminal and negative terminals and detection to intending charging process test load (3) Each interface of system interface (1.1) carries out recorded broadcast.
- 2. direct-current charging post detecting system according to claim 1, it is characterised in that:The electric current letter of the oscillograph (6) The direct current output positive terminal DC+ of number interface access testing system interface (1.1), the first voltage signaling interface of oscillograph (6) connect Enter the direct current output positive terminal DC+ and direct current output negative pole end DC- of detecting system interface (1.1), the CAN of oscillograph (6) The CAN positive pole COM1 S+ and CAN negative pole COM1 S- of communication interface access testing system interface (1.1), The accessory power supply positive terminal A+ and accessory power supply negative pole of the auxiliary power interface access testing system interface (1.1) of oscillograph (6) A- is held, the connection of oscillograph (6) confirms the first connection confirmation signal communication ends CC1 of interface access testing system interface (1.1) With the second connection confirmation signal communication ends CC2, the second voltage signaling interface access analog charge procedural test of oscillograph (6) is born Carry the positive terminal and negative terminals of (3).
- 3. direct-current charging post detecting system according to claim 1, it is characterised in that:Detecting system interface (1.1) it is straight Switch K7 one end, the direct current output negative pole of detecting system interface (1.1) are connected between stream output cathode end DC+ and switch k5 The switch K7 other end is connected between end DC- and switch k6.
- 4. direct-current charging post detecting system according to claim 1, it is characterised in that:Digital circuit processing module (1.3) Control signal output connect analog charge procedural test load (3), charging pile load capacity test load (4) and mould respectively Intend the control signal input of power supply (5).
- 5. direct-current charging post detecting system according to claim 1, it is characterised in that:It also includes signal gating device (7) With oscillograph (9), under the gating control of signal gating device (7), the recording interface that oscillograph (9) is chosen to oscillograph (6) enters Row ripple is analyzed.
- 6. direct-current charging post detecting system according to claim 1, it is characterised in that:It also includes host computer (2), described The USB communication interface of host computer (2) turns the CAN positive pole of USB module (10) access testing system interface (1.1) by CAN COM1 S+ and CAN negative pole COM1 S-, the Ethernet interface access digital circuit processing module of host computer (2) (1.3) host computer communication interface.
- 7. direct-current charging post detecting system according to claim 1, it is characterised in that:It also includes switch K1, switch K1 ', switch G1~switch G4, resistance R1~resistance R7, wherein, switch the of K1 one end connecting detection system interface (1.1) One connection confirmation signal communication ends CC1, the other end for switching K1 pass through the earth terminal of resistance R1 connecting detections system interface (1.1) E-GND, the first connection confirmation signal communication ends CC1 of K1 ' one end connecting detection system interface (1.1) is switched, switch K1's ' By the earth terminal E-GND of resistance R2 connecting detections system interface (1.1), one end connecting detection system for switching G1 connects the other end The earth terminal E-GND of mouth (1.1), the other end for switching G1 pass through the direct current output of resistance R3 connecting detections system interface (1.1) Positive terminal DC+, switchs the earth terminal E-GND of G2 one end connecting detection system interface (1.1), and the other end for switching G2 passes through electricity The direct current output positive terminal DC+ of R4 connecting detections system interface (1.1) is hindered, switchs G3 one end connecting detection system interface (1.1) earth terminal E-GND, the other end for switching G3 are born by the direct current output of resistance R5 connecting detections system interface (1.1) Poles D C-, switchs the earth terminal E-GND of G4 one end connecting detection system interface (1.1), and the other end for switching G4 passes through resistance The direct current output negative pole end DC- of R6 connecting detections system interface (1.1), the second connection of analog-digital converter (1.2) confirm detection Analog signal interface passes through resistance R7 connection 12V voltage sources.
- 8. direct-current charging post detecting system according to claim 1, it is characterised in that:It also includes power analyzer (11), the direct current output positive terminal DC+ and direct current output negative pole end DC- of detecting system interface (1.1) and power analyzer (11) Connection, power analyzer (11) is to being tested output current voltage of the direct-current charging post interface (8) by detecting system interface (1.1) Characteristic carries out sampling analysis, and before tested direct-current charging post interface (8) is put into operation, detecting system interface (1.1) is used for being tested directly Inlet wire A, B, C, N connection of current charge staking mouth (8), sampling analysis is carried out to input current voltage.
- 9. a kind of charging pile detection method using direct-current charging post detecting system described in claim 1, it is characterised in that it is wrapped Include following steps:Step 1:Exact p-value is connected, connection exact p-value checks whether direct-current charging post can be by the connection confirmation letter of measurement first Signal communication end CC1 magnitude of voltage judges the connection status of vehicle plug and vehicle socket, and charged state corresponding to entrance;If the voltage for detecting the first connection confirmation signal communication ends CC1 is the first predeterminated voltage, judge detecting system with filling Electric staking mouth is fully connected, and the accessory power supply of direct-current charging post interface is to detecting system interface (1.1) output voltage, DC simulation Device (1) is started working, then this time test result is normal;Step 2:Autonomous test is tested, digital circuit processing module of the direct-current charging post by CAN to DC simulation device (1) (1.3) handshake message is sent, host computer (2) is monitored parsing to handshake message, is simultaneously emitted by handshake message, simulates electronic vapour Car BMS sets charging ceiling voltage, and then direct-current charging post carries out Insulation monitoring and insulation is released;Step 3:Charge the preparatory stage, host computer (2) is controlled by the digital circuit processing module (1.3) of DC simulation device (1) Analog power (5) simulation electric automobile charges normal the output of battery both end voltage, is closed at switching GK1 and GK2, direct current mould The digital circuit processing module (1.3) for intending device (1) reports and submits battery to prepare by CAN to direct-current charging post transmission message Good, host computer (2) monitors that direct-current charging post sends message and reports and submits direct-current charging post to get out information, and this test result is just Often;Step 4:Charging stage tests, and host computer (2) is by the CAN of digital circuit processing module (1.3) to DC charging Stake sends battery charge requirement message and reports and submits voltage requirements, current needs, and host computer is by controlling DC simulation device (1) to defeated Go out voltage to measure, and send the total state message of battery charging to direct-current charging post and report and submit charging voltage value information and electric current Measure value information;If host computer (2) monitors that direct-current charging post sends direct-current charging post charged state report to DC simulation device (1) Text reports and submits voltage output value, current output value, accumulative charging interval, and charge permission state, then this time test result is normal;Step 5:The ending phase that charges test, the digital circuit processing module (1.3) that host computer (2) passes through DC simulation device (1) The magnitude of voltage of analog power (5) is set, simulates charging electric vehicle completion status, and send BMS to direct-current charging post and stop to fill Telegram text reports and submits termination to charge, and direct-current charging post stops charging and sending direct-current charging post termination charging message, then this time tests As a result it is normal.
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